I haven't but at a guess I'd say it's probably because Popcorn Time is a media app which makes it closer to any number of conventional HTML5 websites.
Whereas LightTable is an IDE, but the limitations of windowing and feature layout were showing heavily in it's interface. node-webkit to me, seems like it's good for a particular type of application interface, rather then something very general purpose.
Whereas LightTable is an IDE, but the limitations of windowing and feature layout were showing heavily in it's interface. node-webkit to me, seems like it's good for a particular type of application interface, rather then something very general purpose.